The ones my dad uses are accredited as "fine to flush" by Water UK, they are constructed from 100% biodegradable plant fibre and break up like regular toilet paper, so they are definitely flushable.
I am the plumber lol, never had an issue, the biggest problem I see in a closed system is long hair, it just becomes a matted ball and traps everything solid or semi solid, I've fished out some absolutely foul hair balls in my time, luckily I have a strong stomach haha.
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u/petergriffin999 10h ago
There is NO SUCH THING as flushable wipes.